malicious
adjective
uk/məˈlɪʃəs/ usmalicious behaviour is intended to harm other people:
The court ruled that she had not acted with malicious intent.
malicious accusations/allegations/gossip
malicious damage/destruction
INTERNET, IT
malicious software or computer programs are designed to damage other people's computers and prevent them from working normally:
Recent incidents have demonstrated how easily malicious hackers are able to disrupt the operations of many large companies.
malicious programs/software
maliciously
adverb
The lawsuit accused the defendant of maliciously using the logo "to cause confusion".